نوع مقاله : مقاله مروری
نویسندگان
دانشگاه علم و صنعت ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The development of non-hydrogen desulfurization processes is an important necessity due to the reduction of operational costs. Extractive desulfurization is one of the most important non-hydrogen processes for removing sulfur compounds from liquid fuels, which has been successful in removing various sulfur compounds. The intensification of chemical processes through their implementation in small dimensions such as millimeters, micrometers, and nanometers has received significant attention under the title of microfluidic technology. By reducing the hydrodynamic diameter of the contacting entities, the surface-to-volume ratio increases significantly, leading to the emergence of new phenomena. One of the benefits of using microfluidic technologies is the improvement of mass and heat transfer coefficients, which accelerates the process. Performing extraction processes in microfluidic systems intensifies the extraction process and significantly reduces the process time. It also makes the process easier to control and safer. The performance of a microfluidic device in an extraction process depends on the available interfacial area for mass transfer and the length of diffusion, which are themselves influenced by the types of two-phase flow patterns formed during the phase contact stage. The phase separation efficiency is dependent on the specific flow pattern formed during the phase contact stage. The formation of different patterns depends on the physical properties of liquids (density, viscosity, surface tension, wetting parameters), operating conditions (flow rate of two phases, flow ratio of phases) and channel geometry (width, depth, internal structure, input structure). In this study, researches on extractive desulfurization and important process parameters in microfluidic systems are reviewed.
کلیدواژهها [English]
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